L
O A D IN G equipment of all types, cutting machines and drilling^ equipment were major attractions at the Cincinnati exposition. Joy Mfg.
Co., Franklin, Pa., exhibited the new Joy 10BU and 8BU loaders, bringing its list of types up to four, including the 7BU and SBU machines. Rated capacity of the 10BU loader is given as 4 tons per minute, against 11 tons for the 8BU and 2 tons for the 7BU and 5BU loaders; maximum capacities are: 10BU, 61 tons per minute; 8BU, 21 tons; 7BU and SBU, 31 tons. W eight of the 10BU type is 18,000 lb.; SBU, 9,500 lb.;
7BU, 14,500 lb.; SBU, 15,600 lb. D i
mensions are: height— 10BU, 54 in.;
SBU, 35 in.; 7BU, 40 in.; 5BU, 53 in.;
width— 10BU, 7 ft.; SBU, 41 ft.; 7BU and 5BU, 6 ft.; length— 10BU, 25 ft.;
SBU. 20 ft. 5 in.; 7BU, 23 ft. 9 in.;
5BU, 24 ft. 6 in.
Caterpillar speed varies from a low of 36 ft. to a high of 178 ft. per minute for the 10BU type, against 55 and 170 ft. per minute for the SBU, and 37 and 114 ft. per minute for the 7BU and 5BU loaders. Maximum reach of the gather
ing arms is: 10BU. 7 ft. 4 in.; SBU, 5 ft. 4 in.; 7BU and 5BU, 6 ft. 8 in. One- man control, in addition to other features, is cited by the company as a major advantage from the standpoint of operating flexibility.
M yers-W haley Co.. Knoxville, Tenn., demonstrated the W haley “Automat”
loader, No. 3 size. Lorain Steel Co..
Johnstown, Pa., displayed the Lorain room conveyor and discharge elevator.
Robins Conveying Belt Co., New York, exhibited sections of its underground belt conveying equipment for mines (Coal Age, December, 1933, p. 434).'
Jeffrey Mfg. Co., Columbus, Ohio, had on display an a.c. Type 44-D loader, Type 61-AM room conveyor, Type 61- HG face conveyor, Type A -6, permis
sible post-mounted drill, Type A-7 port
able electric drill (Coal Age, March, 1934, p. 117), a 29-LE “Arcshcar” cutter equipped with a new spooling device for the cable reel, a Type A-6 per
missible drill, and a Type 35-L short- wall cutter.
Goodman Mfg. Co., Chicago, demon
strated a Type 624CJ combination slab
bing and shearing machine, consisting of a Type 624 combination machine modi
fied to include a shearing element. The latter is supported from beneath by a slide rail, with a guide bar at the top, and is driven backward and forward by
a rack and pinion. The cutting motor drive is used for both slabbing and shearing cuts and is interlocked so that the machine may be operated either way at will, but so that both units cannot be operated at the same time. Both per
missible and open-type models are avail
able for 250 or 500 volts in gages from 36 to 48 in. Principal dimensions are:
over-all height, 4 ft.; width, 5 ft. 11 in.;
length, 28 ft. l i in.; wheelbase, 42 in.;
wheel diameter, 11 i in. Cutting limits, according to the company, are: bottom cutting, 6) in. below to 9 in. above top of rail; shearing, 6) in. below to 8 i ft.
above rail top. W ith cutter bar for 9-ft.
undercut, room widths, with track in center of room, vary from a minimum of 14 ft. to a maximum of 32 ft. Maxi
mum distance from the end of the track to the face is 4i ft.
The Goodman company also displayed Types G-15, G-20 and E-10 shaker con
veyor drives; the Type LO A duckbill and feeder head for shaker conveyors;
swivel troughs; trough supports; the
“Cosco” speed-link and M acHatson trough fastenings; pony trucks for carrying material along shaker lines;
shaker-conveyor guide frames; ball
bearing anchor jacks; and other shaker- conveyor parts, as well as the sawbill loading head (Coal Age, February, 1934, p. 44).
Cutting machines and coal saws were among the features of the exhibit of the Sullivan Machinery Co., Chicago, in addition to the new “pulsing-power”
feed developed by the company for its longwall and shortwall cutters to eliminate the tendency of the cutter chain to bind and clog -with the present high rates of feed, and thus enable the Joy 10BU Loader
234 C O A L A G E — Vol.39. No.6
bits to clear themselves of the cuttings at maximum feeding speeds. The pulsing power feed, according to the company, consists of a cam mechanism and two friction clutches—one for fast feed for moving the machine and the other for slow, or cutting, feed. Both clutches are controlled by one handwheel and cannot be used simultaneously, as there is a neutral point between them. Through a yoke mechanism, the slow-speed, or cut
ting, friction is engaged and disen
gaged alternately, as compared with the ratchet drive, thus causing the feed to slow down and speed up to normal without jerk and allowing the bits to clear the cut before each advance. The pulsation, it is said, is so rapid as to result in no apparent strain on the feed rope. Rate of feed, according to the company, can be varied at will by turn
ing the feed-control handwheel, which controls the duration of advances and pauses (long advances with short pauses or vice versa) as required by cutting conditions.
Sullivan also demonstrated the Joy- designed 6-A track-type coal saw, fea
tured by the use of hydraulic power
for operating vertical and horizontal feeds, rotating the saw head, tilting the saw blade, setting roof jack and operat
ing breaker pad for breaking down the face after the coal is sawed into blocks.
Length with blade in cutting position is 24 ft.; with blade folded back for tram
ming, 18 ft. Over-all height is 29 in.
Performance possibilities with a 6-ft.
saw blade, as outlined by the company, are: cutting radius, 18 ft.; maximum width of shear cut parallel to track, 24 ft.; cutting range, 12 in. below track to 5 ft. above— modified type, 8 ft. above;
shearing radius at right angles to the track, 18 ft.; parallel shear cuts from center of track, 12 ft.
The 52-B floor-type coal saw also was displayed by the company, which pointed out that this machine is similar to the Sl-B type, with the exception that the control is carried by the tram
ming truck, also on display. This ma
chine, according to the company, can saw or shear at any height from zero to 56 in. D epth.of saw slot is 6 ft., and principal dimensions are: over-all height on floor, 261 in.; on truck, 291 in.:
width. 49 in.; length, without blade, 85 ft. Hydraulically operated walking cyl
inders are provided for moving the saw on the bottom.
Another new Sullivan product was the CA-14 track-mounted self-propelled coal
cutter with a power-swing adjustable- height cutter bar for making arcuate or slabbing cuts up to a maximum width of 32 ft. The machine may be fur
nished as either an undercutter or over
cutter and also, it is said, can be changed easily from one to the other in the field.
Kerfs 4 in. thick to an effective depth of 9 ft. are possible, and the frame is sus
pended at three points— rear axle gear box, to allow tilting around the longi
tudinal axis of the machine, and at each front • wheel mounting. This type of suspension allows the frame to be tilted both transversely and longitudinally through the use of a hydraulic ram as
sembly on each front wheel. Additional combination hydraulic ram and link as
semblies operate on the cutter-bar frame and the extension feed frame to swing the cutter bar through a total angle to 90 deg., measured from the long axis of the machine. Separately, each as
sembly gives a total swing of 45 deg.
As the two motions are independent, it is possible, according to the company, to make either arcuate or substantially straight cuts across the face. Height ad
justment also is accomplished by a hy
draulic ram, and another ram is used to tie the main frame to the rear truck carriage, aiding the front-wheel hangers in tilting the frame and acting as an anchor to maintain whatever tilt is de
sired.
The CA-14 machine is available with either a.c. or d.c. equipment of the open or government-approved type. Over-all traveling height is 31 in. with the under
cutter and 41 in. with the overcutter with 16-in. wheels. W idth is 62 in. and length, without cutter bar, is 18 ft. 55 in. Cutting range with the undercutter
Sullivan Floor-Type 52-B Coal Saw and Breaker Pad
type varies from 7 in. below to 7 in.
above the track, and with the overcut
ter type from 37 to 51 in. above the track, both with 16-in. wheels. Normal wheelbase is 47i in., and track gages range from 30 to 48 in. Maximum height adjustment at each front wheel for tilting is 6 in.
Sullivan also offered for inspection the CR-8 room-and-pillar cutter equipped with the pulsing-power feed, which it declares offers much higher power with a simplified design (one- half as many gears). Other features cited by the company include: complete reversibility simply by resetting the bits;
independent drum control; tilting or tip- turn type trucks driven through revers
ing friction-controlled gearing; and con
veniently grouped controls. Both a.c.
and d.c. types, open or government-ap
proved equipment, are available, with the following specifications: weight, 65- ft. bar, d.c. motor, 5,900 lb.; over-all length, excluding bar, 6311 in.; width, 44) in.; height, cutting, 235 in.; kerf thickness, 3, 4. 5 or 6 in.; cutter-bar length, 5), 65, 75 or 85 ft.; cutting feed, 0-33 or 0-66 in. per minute; fast, or re
treating, feed, 40 ft. per minute; tram
ming speed, 0-440 or 0-660 ft. per minute.
Cincinnati Mine Machinery Co., Cin
cinnati, Ohio, displayed the Cincinnati
“Duplex” cutter chain, consisting of the “Duplex” bit, one-piece holder and
“Duplex” bit block. Increased produc
tion, coarser cuttings, greater safety and two to six times longer life, according to the company, result from the follow
ing features: use of high-grade, pre- cision-heat-treated, rigidly inspected al
loy tool steel for the bits; perfect shape;
easy setting (holder released by one- quarter turn of screw); uniform gage:
elimination of resharpening (bits are scrapped when both points are worn dow n); minimum weight (slightly over Above, Sullivan CA-14 Track-Mounted Cutter; Below, Sullivan CR-8 Rooni-
and-Pillar Cutter W ith "Pulsing Power” Feed
rH
Sullivan 6-A Track-Type Coal Saw
/ une, 1934 — C O A L A G E 235
Cincinnati "Duplex” Bit and Holder 1 oz. per bit) with great strength, thus reducing transportation problem; use of durable, heat-treated alloy-steel holder;
and effective locking arrangements to
M
IN E CARS, wheels, hoists and track materials were the principal items featured at Cincinnati by man
ufacturers of transportation equipment.
General Steel Castings Corporation, Ed- dystone, Pa., offered the ' "Common
wealth” cast-steel car built for the Jewell Ridge Coal Corporation and embodying a one-piece cast-steel body with a one- piece cast-steel end-gate. W ith a ca
pacity of 127 cu.ft., or 41 tons, of coal, weight of the car complete is 4,200 lb., or 33 lb. per cubic foot. The car, equipped with the Bonney-Floyd cast- steel Timken-bearing wheel assembly (12-in. wheels) and spring bumper, in
cludes a total of 30 parts: cast-steel body, end-gate, two bumper caps, two end-gate hinge bolts, eight bumper springs, four bumper bolts, four axles, four axle retainer bolts, and four wheels.
Principal dimensions are as follow s:.In
side width, 6 ft.; inside length, 11 ft. 8 in.: height over rail, 30 in.; length over bumpers, 13 ft. l i in.
In addition to wheels and other mine- car specialties, W att Car & W heel Co., Barnesboro, Ohio, displayed an all-steel stub-axle mine car with Miner draft and
• buffing gear. Capacity of this car, de
signed for rotary-dump operation, is 125 cu.ft., an increase of 35 cu.ft. over an older type with the same dimensions—
height, 45 in.: over-all width, 63 in.; in
side length, 96 in.; over-all length. 116 in. Sides inflared at the top to allow the roll to be formed without decreas
ing dimensions was a feature pointed out by the company. W heels (16-in.) are Timken-bearing equipped.
Enterprise W heel & Car Corporation, Huntington, W . Va., showed the all- steel four-axle car with a capacity of 63 cu.ft. and a weight of 3,269 lb. built for the W ells-Elkhorn Coal Corporation.
H eight is 21 in.; inside width. 72 in.; in
side length,.120 in.; over-all length, 144
prevent bit loss. The Cincinnati com pany also displayed cutter head's, chains, sprockets and bit wrenches for mining machines.
Chicago Pneumatic Tool Co., New York, in addition to items from its line of CP pneumatic drills, “Little Giant”
mounted and portable electric coal drills and'tools for mine-car and maintenance work, coal augers and the CP (Quimby) portable pneumatic sump pump, demon
strated a telescopic feed for use on mounted electric coal drills. W ith this feed, the front end of the thread bar is not threaded, and the bar is inclosed in telescoping cylinders so that the threads never are exposed even when the bar is
•'fully extended, thus eliminating this source of injuries. Another safety feature is a totally inclosed feed nut.
Chicago Pneumatic also offered the new No. 327-C-450 rotary-type non-reversible pneumatic coal drill with an over-all length of 171 in., a running speed (light) of 450 r.p.m. and a weight of 27i lb.
Timken Roller Bearing Co., Canton, Ohio, displayed the Timken detachable rockbit. Bethlehem Steel Co., Bethle
hem, Pa., offered pneumatic drill steel.
in. W heels, links and pins completed the company’s display.
Lorain Steel Co., Johnstown, Pa., dis
played an all-welded mine car for the United States Coal & Coke Co. with a capacity of 102 cu.ft., featuring the use of A -in. “Cor-Ten” steel, a new prod
uct being developed by the American Sheet & Tin Plate Co. and the Carnegie Steel Co. Cor-Ten is described as a low-chromium-alloy steel with high strength and resistance to corrosion (four to six times that of ordinary car
bon steel and two to three times that of copper-bearing steel urder atmos
pheric conditions). A substantial de
crease in weight with equal strength is stressed by the company.
Mine cars manufactured by the Phillips Mine & Mill Supply Co., Pitts
burgh, Pa., were represented by their photographic likenesses, and the com
pany also displayed wheels, hitchings and mine-car parts. Sanford-Day Iron W orks, Inc., Knoxville, Tenn., employed models to show the operation of its bottom-dumping cars and demonstrated the Sanford-Day roller-bearing mine- car wheel, using Fafnir roller bearings.
Baldwin Locom otive W orks, Philadel
phia, Pa., also employed photographs to present various types of Baldwin-W est- inghouse mine locomotives.
Duncan Foundry & Machine W orks, Alton, 111., demonstrated the effect of correct and incorrect wheel-boring methods on wheel alignment with anti
friction bearings and displayed mine- car wheels said to be stronger and longer-wearing through the use of elec- tric-furnace cast iron, as well as samples from the company’s line of electric-steel castings for all purposes.
“N aco” mine-car wheels and hitch
ings and the W illison automatic coupler and draft gear were displayed by the National . Malleable & Steel Castings Co., Cleveland, Ohio.
Jeffrey Mfg. Co., Columbus, Ohio, ex
hibited a new cast-steel brake shoe with chrome-iron inserts in the flange and tread, said to reduce wear and increase life. The lip of the flange is brought down even with the tread to keep the shoe in proper position on the tread
Bethlehem Draft and Buffing Gear even when the brake rigging is loose.
Locomotives manufactured by the com
pany were presented through a photo
graphic display.
W . H. Miner, Inc., Chicago, offered the D-type draft and buffing gear for double-bumper mine cars, the SL-type for other types of cars and the new Class T-3 friction draft gear and special- heat-treated lightweight coupler as ap
plied to 200 Lehigh Navigation Coal Co.
mine cars. The Class T-3 gear, accord
ing to the company, is an adaptation of the standard friction-type draft and buffing gear used by railroads.
Bethlehem Steel Co., Bethlehem, Pa., offered a newly developed forged-steel spring draft and buffing gear for all-steel mine cars or cars with steel under
frames. Bethlehem also showed wrought-steel wheels for mine cars, Top and Bottom Views of the "Commonwealth” Cast-Steel Mine Car
Increasing Transportation Efficiency
236 C O A L A G E — Vol39, No.6
Flood City Room Hoist
forged-steel coupling links, its complete line of steel ties for mine tracks and switch throws.
Brown-Fayro Co., Johnstown, Pa., in addition to the Model Hkc car-spotting hoist, rerailers, and Timken-bearing track sheaves, mine-car wheels and track rollers, offered for inspection a web- type car wheel. A double web is used instead of spokes, thus, according to the company, reducing weight while still re
taining strength and wearing qualities, due to the fact that both the depth and the location of the chill can be definitely controlled. The Brown-Fayro exhibit also included nickel-chrome-steel pump parts for longer wear and greater re
sistance to corrosion; all-bronze afid high-lead bronze foot-valves and strain
ers; cast-iron and bronze “Multiport”
check valves; beetle-back strainers; and the Austin-Brownie 5x6-in. permissible pump.
Steel mine ties and wrought-steel wheels for mine cars and locomotives formed part of the display of the Car
negie Steel Co., Pittsburgh, Pa. W eir- Kilby Corporation, Cincinnati, Ohio,
showed frogs, switch throws and track supplies.
Flood City Brass & Electric Co., Johnstown, Pa., offered a new S-hp.
completely inclosed room hoist of the friction-clutch type. W eight complete with motor is 1,140 lb. Length is 46 in.;
width, 254 in.; height, 214 in. W ith a car resistance of 30 lb. per ton, the 5-hp.
hoist will develop a rope pull of 1,200 lb.
at 140 ft. per minute, according to the company, and will handle loads varying from 40 tons on the level to 4 tons on a 15-per cent gradient. Rope capacity is:
4-in., 675 ft.; iVin., 880 ft.; g-in., 1,175 ft. Both open and permissible types for 250 and 500 volts, d.c., and 220-440 volts, a.c., are available.
Sullivan Machinery Co., Chicago, dis
played the new RH E-5 room hoist, said to be a compact, strong, single-drum electric hoist especially adapted to han
dling cars in room work, but also suit
able for other pulling service.
W est Virginia Rail Co., Huntington, W . Va., offered for inspection switches, steel ties, switch stands and throws, in
cluding a special steel switch tie which can be used for cither right- or left- hand turnouts and is made to suit any type of switch stand, as well as a special switch stand for use with steel ties.
Nachod & U. S. Signal Co. and the Cheatham Electric Switching Device Co., Louisville, Ky., showed Nachod sig
naling and indicating equipment, the Cheathanl automatic electric switch- thrower operated by a trolley contactor, and “Reflex” (reflecting) trip markers.
New items in the Nachod line included a switch-position indicator and an MS signal with the lights and control relays built into the same cases.
Jeffrey-Traylor division, Jeffrey Mfg.
Co., offered a display built around the Colorado-type hoisting signal system.